Improvement in knives for cutting paper-collar blanks



A. DEWES. KNIVES FOR CUTTING PAPER-COLLAR BLANKS. N0.171,270. PatentedDec. 21,1875.

7/16 Znesse's fizz/e22 Z011 wrwm 02W- X'W N- FETERS, PHOTO-LITHOGRAPHERWASHINGTON. D C.

'sides a b c d are parallel.

UNITED STATES PATENT OFFICE.

' ABEDNEGO DEWES, OF BROOKLYN, NEW YORK.

IMPROVEMENT IN KNIVES FOR CUTTING PAPER-COLLAR BLANKS.

Specification forming part of Letters Patent No. 171,270, dated December21, 1875; application filed November 3, 1875.

To all whom it may concern:

Be it known that I, ABEDNEGO Dnwns, of the city of Brooklyn, county ofKings, State of New York, have invented certain Improve ments in Knivesfor Cutting Paper-Collar Blanks, of which the following is aspecificati0l1:

My invention relates to knives for cutting out paper-collar blanks froma strip or sheet of' paper, 850.; and it consists in a certain novelgeometrical configuration of the knife, whereby great facility forcutting is obtained and it has for its objects to obviate waste ofmaterial of which the collars are made, and to increase the capacity ofthe cutter, as will be fully hereafter set forth.

Figure l is a diagram illustrating the geometrical configurat'ion'of theknife. Fig. 2 represents the complete cutter. diagram illustrating themanner of operation of the cutter, and Fig. 4 represents a papercollarbla pk cut by the cutter.

For the purposes of rendering the principle on which the, knife cutsclear and lessening the difficulty of a literal description of myinvention I have embodied in the drawing a diagram showing at a glancethe configuration of the knife, the Inching-cutters and other slightirregularities being disregarded therein.

The edge of the knife forms substantially three equal, similar, acuteangles-viz., the

two alternate angles a Irc, b c d, the side I) c being common, and theangle d c e, the'side d 0 being common to it and the angle 1) c d. Theangles a b c and b c 01 being similar, the In Fig. 2 is shown thecomplete knife, its edge corresponding substantially to the lines of thediagram, Fig. 1. f f are cutters for niching the extremities of thecollar-blank, as shown at f f Fig. 4. The apexes of the angles are outoff by pieces g g g, and where these pieces meet at g they form theangle i g h. The knife is, in section, of the usual form, and may beeither soldered to a flat plate, A, as shown, or wrapped around acylinder.

The object of the peculiar construction of my improved knife will beobvious from the following description of its operation, and a Fig. 3 isa is brought down on it, producing portions of two collar-blanks. Itwill be seen that of these two blanks B is the more perfect, fornot-only has the angle a b 0 been cut, thus forming one-half of thecollar complete, but

the portion of the knife 0 e constituting a side of the angle d c e,which cuts one-half of the nextcollar, has cut a portion of theremaining half of the first collar. The knife then rises,

and the paper being fed under it the length of a collar, it againdescends, completing both collars, and cutting portions of the two thatare to succeed, the portion of the knife a 1) cutting the end of theblank B, while the angle 61 c 11 cuts the remaining half of blank 0, andthus the operation proceeds, every collar breaking joint, as it were,with the two blanks on the opposite side of the strip of paper. It willbe observed that theangle e g it produces in the middle of the back ofthe collar-blank a little peak, j. This is serviceable for covering thebutton by which the collar is secured to the shirt; but should itbedesirable to have it off, the angle i g It may be bridged over with apiece, as shown by dottedl lines at i i, Fig. 2, and thus converted intoa triangle which would cut away the peak.

It is obvious that this arrangement of knives may be multiplied eitheron a plate or cylinder; but no particular advantage would arisetherefrom, and it would be embraced by my invention.

I claim A knife or die for cutting out paper-collar blanks from a stripor sheet of paper, the

edges of which form three similar, equal, acute angles, a b c, b c d,and d c 6, whereby two complete collar-blanks are cut from the striporsheet of paper at each successive action of the knife thereon,substantially inthe manner described and specified.

ABEDNEGO DEWES. Witnesses: E. H. JoHNsoN, WM. LINDSAY.

